BRAINCAKEThe Dual Nature of Light
Light has a dual nature.
In some instances it behave like a wave and has wave properties such as diffraction. Electromagnetic radiation has a wave speed, frequency and wavelength.
The wave equation is:
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Key terms in this lesson
- Photon
- A discrete packet, or quantum, of electromagnetic energy.
- Photoelectric effect
- The emission of electrons from the surface of a metal when electromagnetic radiation of frequency above a threshold value is incident on it.
- Diffraction
- The spreading out of waves as they pass through a gap or around an obstacle.
More in The Photoelectric Effect
- De-excitation
- Fluorescence
- Fluorescent Tube
- Line Spectra
- Excitation of Hydrogen Atoms
- The Discovery of Helium
- De Broglie's Hypothesis
- Evidence for de Broglie's Hypothesis
All 19 lessons in The Photoelectric Effect · All AQA AS-level Physics topics